BV150H
Three Channel Guitar Amplifier
The Front Panel – Input, Channel 1:
1. INPUT JACK: Use this 1/4” jack to connect your guitar to the
amplifier by means of a shielded instrument cable.
2. CH. 1 SELECT SWITCH: This switch, when activated, selects
Channel 1. The green LED above the switch illuminates when
Channel 1 is selected. When the footswitch (#28, rear panel) is con-
nected, either the front panel select switches or the footswitch may
be used to select the active channel.
3. GAIN: Use this control to adjust the input gain for Channel 1. With
the control rotated counter clockwise, the resulting tones are tight
and dynamic. As you rotate the control clockwise the tones take on
more crunch.
4. TREBLE: Use this control to adjust the high frequency output of
Channel 1. The Channel 1 Treble control provides an adjustment
range of 38dB at 5kHz.
5. MID FREQ SELECT: Use this rotary switch to select the frequency
for the Mid control (#6): 300Hz, 700Hz, 1kHz, 1.5kHz or 3kHz.
6. MID: Use this control to adjust the mid frequency output of
Channel 1. The Channel 1 Mid control provides 10dB of boost or
16dB of cut at the frequecy selected by the Mid Freq Select control
(#5). The Channel 1 Mid control uses a peak/dip style filter.
7. LEVEL: Use this control to adjust the output level for Channel 1.
Use this control in conjunction with the Channel 1 Gain control (#3)
to achieve a wide variety of dynamics and to get the desired sound
for Channel 1.
8. BASS: Use this control to adjust the low frequency output of
Channel 1. The Channel 1 Bass control provides 24dB of boost or
cut at at 50Hz.
Channel 2:
9. CH. 2 SELECT SWITCH: This switch, when activated, selects
Channel 2. The amber LED above the switch illuminates when
Channel 2 is selected. When the footswitch (#28, rear panel) is con-
nected, either the front panel select switches or the footswitch may
be used to select the active channel.
10. GAIN: Use this control to adjust the input gain for Channel 2.
With the control rotated counter clockwise, the resulting tones are
“Classically British” - warm and crunchy . As you rotate the control
clockwise the tones take on a creamy smooth overdrive with a touch
of compression.
11. TREBLE: Use this control to adjust the high frequency output of
Channel 2. The Channel 2 Treble control provides 12dB of boost or
cut at 2.5kHz.
12. MID BOOST SELECT: Use this rotary switch to add a 4 to 5 dB
boost from the low frequencies to the midrange frequency selected:
250Hz, 500Hz, 750Hz or 1kHz.
13. MID: Use this control to adjust the mid frequency output of
Channel 2. The Channel 2 Mid control provides 10dB of boost or cut
at 750Hz.
14. LEVEL: Use this control to adjust the output level for Channel 2.
Use this control in conjunction with the Channel 2 Gain control (#10)
to achieve the desired sound for Channel 2.
15. BASS: Use this control to adjust the low frequency output of
Channel 2. The Channel 2 Bass control provides 20dB of boost or
cut at at 50Hz.
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